FKIE_CVE-2026-7386

Vulnerability from fkie_nvd - Published: 2026-04-29 16:16 - Updated: 2026-06-17 11:02
Severity
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
A flaw has been found in fatbobman mail-mcp-bridge up to 1.3.3. Affected is an unknown function of the file src/mail_mcp_server.py. Executing a manipulation of the argument message_ids can lead to path traversal. The attack can be executed remotely. The exploit has been published and may be used. Upgrading to version 1.3.4 is able to address this issue. This patch is called 638b162b26532e32fa8d8047f638537dbdfe197a. Upgrading the affected component is recommended.
References
cna@vuldb.comhttps://github.com/fatbobman/mail-mcp-bridge/
cna@vuldb.comhttps://github.com/fatbobman/mail-mcp-bridge/commit/638b162b26532e32fa8d8047f638537dbdfe197a
cna@vuldb.comhttps://github.com/fatbobman/mail-mcp-bridge/issues/2
cna@vuldb.comhttps://github.com/fatbobman/mail-mcp-bridge/releases/tag/1.3.4
cna@vuldb.comhttps://vuldb.com/submit/803096
cna@vuldb.comhttps://vuldb.com/vuln/360107
cna@vuldb.comhttps://vuldb.com/vuln/360107/cti
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "mail-mcp-bridge",
          "vendor": "fatbobman",
          "versions": [
            {
              "status": "affected",
              "version": "1.3.0"
            },
            {
              "status": "affected",
              "version": "1.3.1"
            },
            {
              "status": "affected",
              "version": "1.3.2"
            },
            {
              "status": "affected",
              "version": "1.3.3"
            },
            {
              "status": "unaffected",
              "version": "1.3.4"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw has been found in fatbobman mail-mcp-bridge up to 1.3.3. Affected is an unknown function of the file src/mail_mcp_server.py. Executing a manipulation of the argument message_ids can lead to path traversal. The attack can be executed remotely. The exploit has been published and may be used. Upgrading to version 1.3.4 is able to address this issue. This patch is called 638b162b26532e32fa8d8047f638537dbdfe197a. Upgrading the affected component is recommended."
    }
  ],
  "id": "CVE-2026-7386",
  "lastModified": "2026-06-17T11:02:19.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-7386",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-29T15:32:00.670022Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-29T16:16:29.333",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/fatbobman/mail-mcp-bridge/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/fatbobman/mail-mcp-bridge/commit/638b162b26532e32fa8d8047f638537dbdfe197a"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/fatbobman/mail-mcp-bridge/issues/2"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/fatbobman/mail-mcp-bridge/releases/tag/1.3.4"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/803096"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/360107"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/360107/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}


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